Entitlements are units of customer support in Salesforce, such as “phone support” or “web support.” They’re typically used to represent terms in service agreements.
Issue: When deploying EntitlementProcess via ANT Tool/Change Set, it checks if the EntitlementProcess is in use, and throws below error if it is in use in the target org.
Solution: This is a Known issue and for now does not have any fix. At this point, only workaround is to make change in the Entitlement Process manually (using UI) in the target org.
Known Issue reference: https://issues.salesforce.com/issue/a028c00000qQ7fWAAS/updating-entitlement-process-changes-via-change-set-throws-error
